Doorstop



NOV.. 8, 1932'. W, E WEGNER 1,887,365

vDORSTOP Filed June 4, 1952 Patented Nov. 8, 1932 n UNiTEDsTATEs WALTER n WEGNER., or DENVER, coitonanoy noons'ror! Application led .Tune 4,1932; Serial No. 615,403.

trouble is experienced by the doors blowing shut and accidents sometimes happen from this cause.

VIt is the object of thisinvention to produce a simple and substantial door stop mechanism that can be easily pnt in place and which will automatically latch thedoor in openingV position. A Y v Another object of this invention is lto produce a device of the type specified which-shall be of such construction that it can be readily applied to doors of dierent sizes and which, in addition to holding the door in fully open position, is equally well adapted to hold the door in an intermediate position. v

A. further object of this invention is to produce a door stop that shall be provided with a gripping device that can readily 'be disconnectedby a simple pull on a chain or cordV and which Will remain in disconnected or inoperative condition, until the door is fully closedwhen it will automatically return to operative position. Y

A still further object of this invention is to produce a device in which'the door shall be connected to the device by resilient means so asy to permit a limited amount of movement Awithout producing excessive strains.

Y This'V invention, brieflydescribed, consists ina tubular member having one end provided with means for pivotally attaching it to the top member of the door `frame. The free end of the tubular member is provided with a gripping means andv telescopically connected with the tubular member is a rod. The outer end of this rod is connected with the door bymeans of a bracket andthe gripping means is Yso constructed that itr will permit the rod to be pulled outwardly from the tubular member, but will latch it against inward movement. The gripping means is provided Vwith a linch mechanism that. win hanv the gripping means inoperative while the door `is being moved to closed position and whichV i the, door and for this purpose reference will be had to the accompanying drawing in-which the preferred-embodiment of the invention hasl been illustrated, and in which:

' Fig. l is aside elevation ofa door showing the same in closed position with the improved door stop attached thereto;

Fig.2.is a view looking down upon the doo-r4 and showingA the same in open position;

Fig. 3 is a view partly in' section showing the lower end of the tubular member and the top lof the gripping device, the parts being showny in the position they occupy when the door is closed; Y

A Fig.y llis a section taken on line 4 4, Fig; 3,v and shows the gripping device in normal position; v j y Fig; 5is a view similar to that shown in Fig. 4f, but shows the gripping device'hel in inoperative position; and

Fig. 16 is a transverse section taken on line 6 6, Fig; 5.

In the drawing reference numeral 1 designates one ofthe vertical members of a door frame while reference numeral 2 indicates the top member of the door frame. Y The door which has been indicatedby re'erencenumeral 3 is secured to the'vertical door frame by y means of hinges The door stop which i'orms the subject of this invention consists of a .tubular member 5 which may be a piece of gaspipe and which has attached to its upper end a curved `fitting 6 which may be a fortyfive degree elbow or a special itting designed for thispurpose. Membery 6 has a headed projection 7 that extends through an opening inthe Vbraclret`8 and this bracket is secured to the inner side of frame member 2 by means of screws or bolts 9.` Secured tothe freel end, which in this case is thelower endof member 5, is a'gripping device. This gripping device consists of a tubular body member 10 which maybe a brass casting `or made y of some other suitable material. Member 10 has one end provided with a threaded opening 11 with which the lower end of pipe 5 is connected in the manner shown in Figs. 4 and 5. A recess 12 extends into one side of member 1 0 to a point substantially in line with the root-s of threads 11. The other end of member 16 is provided with an opening 13`through which a rod 14 extends. This rod extends into the interior of pipe and is of such a size that it will move freely in the opening in the pipe. vThe sides of member extendV upwardly and are separated at the end where connection' is made with pipe 5 so as to 'form an opening 15 for the reception of one end of alatching'member 16. Latching member 16 is held in place by means Vof a pivot pin 17 which permits it to rotate to some extent about this pin as a center. The other end of member 10 has a notch18-in which the free end 19 of the detent lever normally rests. The .under side of the end 19 is curved as indicatedat 20 so as to form a cam surface and rod 14 has secured to it a cam member 21VJ having a `*frusto-conical surface 22, which serves to raise1th'edetent lever 16 when the parts are inY the position shown in Fig. 4. The lower side of member 10is provided with a slot 23 through which a gripping plate 24 extends. This plate has an opening 25 through which the rod 14 extends in the manner shown inFigs'. 4 to 6. A spring 26 surrounds the rod 14and has its ends abutting one side' of plate'24 and one end ofthe recess in member 10; This Vspring is normally under compression and exerts a force that holds the gripping plate in the position shown .in Fig. 4. The outerend of plate 24 has an arm 27 that extends at right angles and to which a chain 28 or a cord is connected.l By exerting a pull on' the'chain 28 the plate can be rocked about its fulcrum `until the end that is located underneath lever 16 comes into the notch 29 as shown in Fig. 5, whereupon it will be held in this position by lever 16; It is apparent that when the gripping plate is in the position shown in Fig. 4. it will permit the rod 14 to be extended with respect to the pipe 5, but will resist any action tending to move the rod 14 into the pipe.- Vhen the gripping plate is in the position shown in Fig. 5, rod ,14 can be moved freely in either direction. From F 4 it will be seen thatithe inner end of rod 14 has been provided with an opening 30 to which one end of a. coiled tension spring 311is connected. The other vend of spring 31 is anchored to a pin 32 located near the upper end of member 5. The springY tends to move the rod 14 inwardly so as to collapse the two members, Ybut is not of sufficient strength to offer any appreciable resistance against the opening of the door. Y When thisspringis used it should be of sufficient strength to at least-partially close the door after the gripping means has been moved intothe position shown in Fig. 5.

Let us now assume that a device constructed in the manner shown on the drawing and described herein is attached to the upper frame member of a door frame and to a doo-r in the manner shown in-Figs. 1 and2. When the door is closed the parts are in the position shown in Fig. 1, but as the door is opened, rod 14 is pulled outwardly from the pipe 5 `and isheld against return movement by the gripping plate 24. Wherever the door is released, it will remain open because it cannot move to closed position against the action of the gripping means. After the automobile has been taken out from or driven into' the garage and it is desired to close th-e doors, a slight pull is given-to the chain 28,*whereupon the gripping plate is moved from the position shown in Fig. 4 to that shown in Fig. 5 and is held in this position by means o-f the lever 16, hereupon the rod 14 can move freely into the -pipe 5 and this permits the door to be closed. The cam member 21 is so positicned on the rod Vthat when the doo-r is fully closed, it will raise the-lever 16 and release the gripping plate so as to permit the parts Ito return to normal position.

For the purpose of permitting the door to move to some extent without producingk excessive strains on the hinges, a spring 33 has been put in place between the bracket 34 which is secured to the door andthe washer 35 that surrounds the end of rod 14 and which is held in place by-means of a pin 36. Another pin 37 extends through the extreme end of rod 14 and keeps it from being withdrawn from the bracket 34. When a gust ofwind strikes the door, it canmove slightly because the spring 33 will yield. The spring 31 can be dispensed with as it is not essential to the operationof the device, but may be desirable in some installations. j From the above description it will be apparent that I have produced a simple kand substantial door stop that can be readily applied to any hinged door and which will automatically latchthe door in open position and which will be effective at any point between closed and fully open position. It-will also be apparent that I have produced a very simple gripping means that can be quickly released and which will be automatically re turned to normal position when the door is closed. y .v

Having described the invent-ion whatv I claim as new is :j

1. In combination with a door frame and a door hingedly connected therewith, means for holding the door in open position, comprising, in combination, two telescopically connected members, one end of one of the members beingpivotally connected with the door frame and one-end of the other member being connected with the door, gripping means carried by one 01"' the members for preventing the two members from collapsing while permitting them to extend, means for moving the gripping means to inoperative position, means for latching the gripping means in inoperative position while the door is moved to closed position and means for releasing the latching device when the-door reaches closed position. K Y

2. In combination Vwith a door frame and a door hinOedly connected therewith, means for holding the door in open position, comprising in combination, two telescopically connected members, one of which is tubular and the other of which is adapted to extend into the tubular member, one end ofthe tubular member being pivotally connected vwith the door frame, one end of the other member being connected with the door, a gripping device carried by the free end of the tubular member and cooperating with the other member to permit extension of the two members, but prevent them from being collapsed, meansY for moving the gripping device toinoperative position, a latching device for holding it in inoperative position while the door is moved to closed position and means for releasing the latch when the doorA reaches closed position.

3. In combination with a door frame and. a door hingedly connected therewith, for holding the door in open'position, comprising, in combination, two telescopically connected members, one of which is tubular and the other of which is adapted to extend into the tubular member, one end of the tubular member being pivotally connected with the door frame, one end of theother member being connected with the door, a gripping device carried by the free end of the tubular member and cooperating with the other member to Vpermit extension of the two members, but prevent them from being collapsed, means for moving the gripping device to inoperative position, a latching device :tor holding it in inoperative position while the door is moved to closed position, means for releasing the latch when the door reaches closed position, and a resilient connection between the door and the holding device whereby the door may move towards closed position to a limited extent.

4. In combination with a door frame and ay a door hingedly connect-ed therewith, means for holding the door in open position, comprisinp a tubular member pivotally connected at one end to the top of the door frame, a rod extending into the tubular member and movable longitudinally therein, one end of the rod being connected with the door, a'v

gripping device connected with the free end of the tubular member, said gripping device comprising a plate having a hole through which the rod extends, a ulcrum for the plate at one side of the rod, a spring assolciated with the plate and tensioned to move in combination opening, a plate extendingthrough the opening and provided with a hole, a rod extending through the tubular bodyimember, through the hole inthe plate and into the tubular member, a spring operatively associated with the plate for moving it into a plane inclined with respect to the axis of the rod', a latch member pivotally. connected-with the tubular body member for engaging one end of the plate `and holding it in inoperative position, means comprising va cam connected with the rod and .adapted when in one position to engage the latch and move it into inoperative position, and means for attaching the rod to the door whereby when the door is opened the rod will be pulled outwardly from the tubular member, and when the door is closed it will beV moved inwardly into the tubular member. Y

In Vtestimony whereof I aiix my signature. W'ALTER E. WEGNER. 

